Topic on Project:Support desk

The exception error is

Forbidden
You don't have permission to access /mediawiki/index.php on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

It occurs when trying to save or preview a page (not just this one)

An error is caused by certain URLs and not others. For example, converting:

"http: //www.imc-cim.org/..."

to

"http://www.imc-cim.org/..." (i.e. dropping the space between the : and the //)

...triggers this error. In fact putting any url there seems to trigger the error.

Earlier in the page, the word "poker" triggers the error. This is avoided if a space is replaced (po ker) and "casino" has a similar effect.

I've looking for a solution for a couple of days without success. Any clues would be most appreciated.

This issue may be related to: (Resolved)Are there forbidden character sequences that can cause 404 errors? except I could not figure out what had been resolved.

*MW: 1.16PHP:5.2.17 MySQL: 5.5.20 URL: http://www.musicforum.org.au/kbwikipreprod/index.php?title=Overview_of_Music_Statistics:_Other_Sources

(Note, this type of error isn't usually referred to as an exception).

Probably caused by your web server configuration. Do you have apache's mod_security enabled?

Can you look at your apache error_log (on many servers this is located in /var/log/apache/error_log, but could be somewhere else depending on how your server is set up). Whatever caused the 403 error to happen most likely resulted in an entry in the error_log.

Thanks a lot for your help. Much appreciated.

For the record (+for others who find there way here), there were two bugs causing the error. The URL component was fixed by resetting all the file/directory permission bits in the MW 'home' directory to 644/755 respectively.

The second, relating to "po ker" => "poker" was fixed by the ISP whitelisting a mod_security issue.

David

what MW 'home' directory are you referring to?

See also:

• (RESOLVED) index file exception on save

100% mod_sec was the problem. Once namecheap removed the mod_sec my wiki works great. Here is youtube video of the problem: https://www.youtube.com/watch?v=82MvQXQgfHo

here are a lot more articles on the mod_sec issue

I get this 404 error when I add this: [http://is.gd/namecheapmod namecheap] This is my solution: namcheap http://is.gd/namecheapmod